• 专利标题:   Negative electrode for lithium secondary battery, comprises negative electrode active material layer containing carbonaceous active material, and graphene layer formed on negative active material layer.
  • 专利号:   KR2018107008-A
  • 发明人:   CHOI H W, KIM E K, WOO S W, CHAE O B
  • 专利权人:   LG CHEM LTD
  • 国际专利分类:   H01M004/133, H01M010/052, H01M004/134, H01M004/1393, H01M004/36
  • 专利详细信息:   KR2018107008-A 01 Oct 2018 H01M-004/133 201871 Pages: 13
  • 申请详细信息:   KR2018107008-A KR032671 21 Mar 2018
  • 优先权号:   KR035113

▎ 摘  要

NOVELTY - Negative electrode comprises a negative electrode active material layer (110) containing a carbonaceous active material, and a graphene layer (120) formed on the negative active material layer, where the graphene layer has a thickness of 1-10 mu m. USE - Negative electrode for lithium secondary battery (claimed). ADVANTAGE - The negative electrode has increased specific surface area to allow a large amount of lithium ions to be adsorbed, and shows a low charge transfer resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing negative electrode for a lithium secondary battery, which involves: (A) forming negative electrode active material layer containing carbonaceous active material on negative electrode current collector; and (B) forming graphene layer having a thickness of 1-10 mu m on the negative electrode active material layer. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic cross-sectional view of the cathode for a lithium secondary battery. Cathode collector (100) Negative electrode active material layer (110) Graphene layer (120)